DEVELOPMENT AND IMPLEMENTATION OF AN ARDUINO-BASED SOUND LEVEL MONITORING SYSTEM FOR STEM-ORIENTED PHYSICS EDUCATION

The integration of Science, Technology, Engineering, and Mathematics (STEM) education into modern teaching practices has significantly transformed physics instruction by encouraging hands-on experimentation and problem-solving skills. This study presents the development and implementation of an Arduino-based sound level monitoring system designed for STEM-oriented physics education. The project aimed to create an affordable, portable, and interactive learning tool capable of measuring environmental sound intensity while enhancing students’ understanding of wave physics, electronics, and programming concepts. The system was developed using an Arduino Uno microcontroller, a KY-038 sound sensor, an LCD display module, and supporting electronic components. Experimental activities were conducted with secondary-level physics students to evaluate the effectiveness of the device in classroom applications. The sound monitoring system successfully measured sound intensity levels in different environments with acceptable accuracy compared to commercial sound level meter applications. The experimental results demonstrated that students improved their conceptual understanding of sound waves, decibel measurement, and sensor-based data acquisition. Furthermore, the implementation of the project promoted active learning, creativity, and interdisciplinary problem-solving skills associated with STEM education. The study concludes that Arduino-based educational systems provide cost-effective and efficient solutions for enhancing practical physics learning and increasing student engagement in technology-oriented scientific activities.